G.f. A(x) satisfies: A(x) = 1 + x + x^2 + x^3 + x^4 + x^5 * A(x/(1 - 2*x)) / (1 - 2*x).
A351344
G.f. A(x) satisfies: A(x) = 1 + x + x^2 + x^3 + x^4 + x^5 * A(x/(1 - 2*x)) / (1 - 2*x).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =3a(7) =9a(8) =27a(9) =81a(10) =243a(11) =731a(12) =2223a(13) =6939a(14) =22727a(15) =79971a(16) =306929a(17) =1282815a(18) =5744361a(19) =26984415a(20) =130656409a(21) =644739377a(22) =3224303841a(23) =16318576681a(24) =83717193681a(25) =436948772697
External references
- oeis: A351344